Analytical Testing Services

Policy Statement

About Us

Customer Focused, Service-Oriented, Analytical Testing Laboratory

Cornerstone Laboratories, LLC, is an independent analytical laboratory providing a wide range of testing services. Cornerstone was established in 2001 and is a customer focused, service-oriented,  analytical, testing laboratory. Cornerstone provides environmental, nutritional and cosmetic testing, along with custom analysis, stability testing, test method development and validation services.  Cornerstone utilizes state of the art instrumentation including GC, GC/MS, Headspace GC/MS, ICP/OES and HPLC.

Cornerstone adheres to industry approved test methodologies when available.  Cornerstone also utilizes compendium and proprietary in-house test methodologies. Cornerstone strives to provide the highest level of quality control and assurance. Customer confidentiality is held in highest regard. 

Analytical Testing

Services

CBD Testing

CBD Profiles, Terpenes, Heavy Metals and Pesticides

Cosmetic Testing

OTC’s, Creams, Lotions, Wipes, Hair and Skin Care Products

Water Testing

Drinking Water, Waste Water, Ground Water, Storm Water

Contaminants and Toxic Chemical Testing

Heavy Metals, PCB’s, PAH’s, NPDES Testing, Petroleum Products, Pesticides, Herbicides

Pet Food and Pet Products Testing

Feed, Topicals, Shampoos, Sprays, Dental Care, Toys and Bedding Products

Method Development and Validations

Test Method Development and Test Method Validations

Nutritional Testing

Vitamins, Omega Fatty Acids, Cholesterol, Sugars, Amino Acids, Proximate (Protein, Fat, Fiber, Minerals, Calories and Carbohydrates) along with a variety of supplements

USEPA RCRA and Hazardous Waste Characterization (TCLP) Testing

SW-846, 40CFR-Title 40

Underground Storage Tanks (UST) Testing

BTEX, MTBE, Naphthalene, Gas and Diesel Range Organics

Stability Testing

Shelf life studies, thermal stability, light stability

Raw Material Testing

USP/FCC Monograph Verification

Product Validations

Product testing parameter variance and stability determination

USP Monograph Verification Testing

Need text here

Services

Some of Our

Services

Lorem ipsum dolor sit amet, consectetur adipisicing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. 

Exterior Hand Wash

Click edit button to change this text. Lorem ipsum dolor sit amet, consectetur adipiscing elit. Ut elit tellus, luctus nec.

Interior Detailing

Click edit button to change this text. Lorem ipsum dolor sit amet, consectetur adipiscing elit. Ut elit tellus, luctus nec.

Exterior + Interior

Click edit button to change this text. Lorem ipsum dolor sit amet, consectetur adipiscing elit. Ut elit tellus, luctus nec.

Nutritional Testing
Happy Cars, Happy Clients

Testimonials

” Lorem ipsum dolor sit amet, consectetur adipisicing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam. “

Dennis Burke

Dolor sit amet, consectetur adipisicing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. “

Tyler Garza

” Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo. “

Carol Greene

” Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo. “

Rose Galler

24 Hour Receiving Room

Regular business hours are Monday through Friday, 9:00 a.m. to 3:00 p.m.  After hours, please follow the instructions on the Receiving Room door to securely leave your sample(s).  You will also be able to obtain additional sample containers and sample submission paperwork.  Cornerstone will retrieve your samples the following business day upon opening.

Receiving Samples

24/7/365

Submit Samples Today

A submission form is required to accompany any samples submitted to the laboratory.

Please choose the Chain of Custody form for environmental samples only.

All other samples, select the Sample Submission form.

Please choose the appropriate form below, complete all fields, sign, and include with your sample shipment.

Chain of Custody and Sample Submission forms ensure customer information, sample identification and requested analysis are accurate.

Scroll to Top